Chapter 4. Prerequisites

Create an account on each virtualization manager, such as VMware vCenter and Red Hat Virtualization Manager, or individual hypervisors so the virt-who agent can retrieve the list of guest virtual machines. Each connection is separate, so you can use different accounts for each connection if required. Each account, generally known as a service account, should be dedicated to this purpose, have read-only access, and have a non-expiring password.

The virt-who daemon must be installed on Red Hat Enterprise Linux, version 7 (recommended) or 6. For Red Hat Enterprise Linux hypervisors, the virt-who daemon must be installed on the hypervisor. For all other hypervisors, the virt-who daemon can be installed on the Satellite Server, an external Capsule Server, or a dedicated instance of Red Hat Enterprise Linux. Except for Red Hat Enterprise Linux hypervisors, Red Hat recommends installing virt-who on the Satellite Server, because it simplifies the network configuration and provides maximum availability. If you install virt-who on a dedicated instance of Red Hat Enterprise Linux, this host does not have to be registered to the Satellite Server.

Subscriptions are specific to organizations. Although you can configure the virt-who daemon to support multiple organizations, you cannot share subscriptions across organizations.

Before installing the virt-who daemon, a Red Hat Enterprise Linux instance must be installed and configured as follows.